. >>> deadly violence in syria with a series of suicide bombings in aleppo. a government official says at least 31 people have been killed and scores of others wounded. the explosives went off in a main square. aleppo has seen intensified fighting lately between president assad's regime and the rebels trying to oust him. >>> two republican lawmakers claim state department officials in libya had requested tighter security before the deadly attacks on the consulate in benghazi. california congressman darrell issa and jason chavez of utah say they got their information directly from sources with knowledge of the events in libya. secretary of state hillary clinton is forming a committee to investigate the attacks. >>> federal investigators now believe several gunmen took part in the attack that killed a u.s. border patrol agent in arizona near the mexican border. 30-year-old nicholas ivie was killed in yesterday's shooting and a second agent was injured. the surviving agent is said to be in stable condition. there are no suspects so far. >>> american airlines say